Finding the Fourth Proportional to 158,424.14, 218,591.28 and 93,913.70
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Solution
The fourth proportional to 158,424.14, 218,591.28 and 93,913.70 is: 129,580.73
Step by Step Solution
- Step 1: Write the proportion equation
158,424.14 : 218,591.28 = 93,913.70 : x - Step 2: Convert to fraction form
158,424.14/218,591.28 = 93,913.70/x - Step 3: Cross multiply
158,424.14x = 218,591.28 × 93,913.70 - Step 4: Simplify right side
158,424.14x = 20,528,715,892.54 - Step 5: Solve for x
x = 20,528,715,892.54/158,424.14 - Step 6: Final answer
x = 129,580.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.